HERE'S SOME VIDEO FROM A VIEWER IN BOONVILLE. YOU CAN SEE... FORTUNATELY THAT IS NOT A TORNADO AND I KNOW ITS NOT BECASUE YOU DON'T HAVE ANY DEBRIS AT THE SURFACE BUT IT'S A FEATURE YOU OFTEN SEE IN THE MOST ORGANIZED THUNDERSTORMS... ITS CALLED A WALL CLOUD AND IT'S A ROTATING, LOWERING OF THE